Home » Topic » Haemoglobin
 

 
What is haemoglobin?
Why is the test done?
How is it done?
What are the risks?
What are the normal values?
What are the abnormal results?
 
Mon,22 Nov 2004 05:30:00 +0530
Written by : DoctorNDTV Team
Checked by :
 
  • What is haemoglobin?
    What is haemoglobin?
    Mon,22 Nov 2004 05:30:00
    Haemoglobin (Haeme=iron; globin=a type of protein) is the main component of red blood cells (RBCs). It is a protein that carries oxygen from the lungs to the rest of the body, and carries carbon dioxide from the rest of the body to the lungs. The haemoglobin level is usually measured, along with other investigations, as part of the complete blood count (CBC).
  • Why is the test done?
    Why is the test done?
    Mon,22 Nov 2004 05:30:00
    The level of haemoglobin is measured to check the oxygen carrying capacity of the blood. The low oxygen carrying capacity of the blood leads to the symptoms of anaemia (low level of haemoglobin).
  • How is it done?
    How is it done?
    Mon,22 Nov 2004 05:30:00
    Blood is drawn from a vein, usually from the inside of the elbow. The puncture site is cleaned with an antiseptic, and an elastic band is put around the upper arm to apply pressure. This causes veins below the band to fill with blood. A needle is put into the vein, and the blood is collected into an airtight vial or a syringe. After the blood has been collected, the needle is removed, and the puncture site is pressed to stop any bleeding. No special preparation is required for the test.

    If only haemoglobin is to be tested, the blood can be obtained from a finger prick. The total amount of haemoglobin in the blood is measured by a simple test in the laboratory.
  • What are the risks?
    What are the risks?
    Mon,22 Nov 2004 05:30:00
  • Multiple punctures may be required to locate the veins
  • Blood may collect under the skin
  • There is a very small risk of infection or continued bleeding from the puncture site if pressure is not applied long enough.
  • What are the normal values?
    What are the normal values?
    Mon,22 Nov 2004 05:30:00
  • Males: 13 to 17 gm/dl (grams per decilitre)
  • Females: 12 to 16 gm/dl
  • What are the abnormal results?
    What are the abnormal results?
    Mon,22 Nov 2004 05:30:00
    Less than normal levels are seen in various types of anaemia (low haemoglobin concentration):

  • Malnutrition and nutritional deficiencies of iron, folate, vitamin B12, vitamin B6
  • Red blood cell destruction due to a transfusion reaction
  • Haemorrhage (bleeding)
  • Lead poisoning
  • Excessive intake of fluids (over hydration – temporary dilution of haemoglobin level)

    More than normal levels may be seen in:
  • Congenital heart disease
  • Lung diseases like cor pulmonale and lung fibrosis
  • Polycythemia vera or increased RBC formation due to excess of erythropoietin.
  • ................... Advertisement ...................

       

    FAQ

    ASK OUR EXPERTS

    Using 0 of 1024 Possible characters
    Choose Topic

    Latest stories

    Swine Flu Kills 11 In Nagpur, 4 In Indore: Tips To Prevent Swine Flu

    Fri, 22 Sep 2017 17:00:13 IST
    As many as 11 people died of swine flu in the Nagpur division in the past two days, taking the death toll 73 for the year, whereas four deaths were reported in Indore in a matter of past 24 hours.

    Breathing Dirty Air May Lead To Kidney Failure: Study

    Fri, 22 Sep 2017 16:00:58 IST
    Air pollution may increase the risk of chronic kidney disease, which can lead to the failure of the organ, a study has warned.

    Sexual Touch At An Early Age May Lead To Early Puberty

    Fri, 22 Sep 2017 15:00:02 IST
    German researchers found that women who were touched on their genitals at a young age experience changes in their brain and that touch triggers puberty.

    Moderate Physical Activity For A Healthy Heart, Longer Life

    Fri, 22 Sep 2017 14:00:23 IST
    A recent study concludes that 1 in every 12 global deaths could be prevented, if all of us adhered to at-least 30 minutes of exercise each day, or 2.5 hours in week. Read on to know moderate exercising could help prevent heart disease and help you live longer.

    11 Infants Being Treated For The E-Coli Infection At PGIMER

    Fri, 22 Sep 2017 13:00:42 IST
    The PGIMER (Post Graduate Institute of Medical Education and Research) battles against the outbreak of E-Coli infection in its Neonatal ICU. 1 infants are getting treatment for this infection at the moment, hospital sources reveal.